Cortona to Istanbul: time difference
Istanbul is 1 h ahead of Cortona. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Cortona 01:37 1:37 AM Istanbul 02:37 2:37 AM You –:–
01:37 1:37 AM
Central European Summer Time · UTC+2
☀️ 07:32 · 🌙 18:23
02:37 2:37 AM
GMT+03:00 · UTC+3
☀️ 07:21 · 🌙 18:18
·
+1 h
Istanbul is 1 h ahead of Cortona.
When you, Cortona and Istanbul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇮🇹 Cortona
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇹🇷 Istanbul
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇮🇹 Cortona | 🇹🇷 Istanbul |
|---|---|---|
| Local time | 01:37 | 02:37 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central European Summer Time | GMT+03:00 |
| UTC offset | UTC+2 | UTC+3 |
| Offset from Cortona | — | +1 h |
| IANA zone | Europe/Rome | Europe/Istanbul |
| Daylight saving | On summer time → UTC+1, Oct 25, 02:00 | Not observed |
| Sunrise | 07:32 | 07:21 |
| Sunset | 18:23 | 18:18 |
| Daylight | 10 h 51 min | 10 h 57 min |
| People on this clock | 22,450 | 15,701,602 |
Compare Cortona with another city
More comparisons with Cortona: the time zones next to it and the far side of the clock.
Big time differences
Cortona and Istanbul: common questions
How many hours ahead of Cortona is Istanbul?
The clocks in Istanbul are 1 hour ahead of those in Cortona (UTC+3 and UTC+2).
What time is it in Istanbul at the start of the working day in Cortona?
The working day in Cortona starts at 9:00 AM; in Istanbul it is 10:00 AM at that moment.
What time is it in Istanbul at the end of the working day in Cortona?
The working day in Cortona ends at 6:00 PM; in Istanbul it is 7:00 PM at that moment.
When do working hours in Cortona and in Istanbul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Cortona, which is 10:00 AM to 6:00 PM in Istanbul.
When does the date change in Istanbul compared with Cortona?
The new day starts in Istanbul earlier: at 11:00 PM in Cortona it is already midnight there. Until 1:00 AM in Istanbul, Cortona is still on the previous day.
Does the time difference between Cortona and Istanbul change?
Yes. The clocks change only in Cortona. From October 25, 2026, Istanbul will be 2 hours ahead of Cortona.
